Recommended for professionals, gymnasiums, health clubs and the military, these bags are crafted to last a lifetime. Constructed of an inner Durahide bag that is hydraulically stuffed with a blended filler. The inner bag is surrounded by a thick layer of foam. The Everlast Pro Leather bag outer cover is a top-grain oil-tanned leather. Each bag comes with a complete chain assembly, including a twist-free swivel and heavy-duty spring. NOTE: Leather bags may be black or brown, depending on availability. Not Double-End equipped.